PATCH ANTENNA FOR TAG AND RFID TAG EMPLOYING THE PATCH ANTENNA

摘要

An object of the present invention is to provide a tag patch antenna in which the communication distance is not deteriorated despite being attached to an object including a liquid or a metal and which has a simple and inexpensive structure, and an RFID tag using the tag patch antenna. The tag patch antenna 3 is configured by including a slit 5 formed in the vicinity of an edge of an antenna pattern along part 6 (6a, 6b) of the edge, and a feeding point to which a tag LSI is connected and which is formed by cutting the middle portion of the part 6 of the edge separated by the slit 5 from the body of the antenna pattern 3 by the width of the slit 5. The tag patch antenna 3 and the tag LSI 4 connected to the feeding point are molded a resinous body 2b such as PET or the like in the shape of a card. The resinous body 2b is adhered to a marketed universal resinous substrate 7 as a dielectric with an adhesive 9. Onto the surface opposite to the adhesive surface with the universal resinous substrate 7, a conductor film 8 is pasted.